Java.io.BufferedReader.read() Method

Description

The java.io.BufferedReader.read() method reads a single character from this buffered reader.

Declaration

Following is the declaration for java.io.BufferedReader.read() method

public int read()

Parameters

• NA

Return Value

The method returns a character as an integer. If the end of the stream has been reached the method returns -1.

Exception

• IOException -- -- if an I/O error occurs

Example

The following example shows the usage of public int read() method.

package com.tutorialspoint;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;

public class BufferedReaderDemo {
   public static void main(String[] args) throws Exception {
      
      InputStream is = null; 
      InputStreamReader isr = null;
      BufferedReader br = null;

      try{
         // open input stream text.txt for reading purpose.
         is = new FileInputStream("c:/test.txt");
         
         // create new input stream reader
         isr = new InputStreamReader(is);
         
         // create new buffered reader
         br = new BufferedReader(isr);
      
         int value=0;
         
         // reads to the end of the stream 
         while((value = br.read()) != -1)
         {
            // converts int to character
            char c = (char)value;
            
            // prints character
            System.out.println(c);
         }
         
      }catch(Exception e){
         e.printStackTrace();
      }finally{
         
         // releases resources associated with the streams
         if(is!=null)
            is.close();
         if(isr!=null)
            isr.close();
         if(br!=null)
            br.close();
      }
   }
}

Assuming we have a text file c:/test.txt, which has the following content. This will file will be used as an input for our example program:

ABCDE

Let us compile and run the above program, this will produce the following result:

A
B
C
D
E